根据1981年10月7—15日在舟山朱家尖东清西滩实测的地物光谱反射率资料，求平均反射率和均方差。
Based on ground spectral reflectance data obtained at the west bank of Dongqing, Zhujiajian, Zhoushan Island in October 7-15, 1981, the mean-reflectance and mean-square-error were calculated.
朱家尖岛是舟山群岛最东面的一个岛屿，四周港湾内广泛发育砾滩、沙滩和泥滩沉积。
Gravel and sand beaches, as well as mud foreshore are well developed in the coves around Zhujiajian Island, the most eastern island of Zhoushan Archipelago.
本文主要介绍舟山市朱家尖岛等码头，采用大口径嵌岩柱桩结构的设计、施工情况。
This paper makes introduction to the design and construction of large-dia meter column piles with rubble stone embedded in holes used for the sea-port wharves at Zhoushan Islands.
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